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103221220301 = 124337830173
BaseRepresentation
bin110000000100001110…
…1101101001111001101
3100212102122221021210022
41200020131231033031
53142344113022201
6115230312551525
710312626616223
oct1401035551715
9325378837708
10103221220301
113a859762641
12180086b25a5
13996cc9ac64
144dd2bb0b13
152a41e2a41b
hex180876d3cd

103221220301 has 4 divisors (see below), whose sum is σ = 103222174812. Its totient is φ = 103220265792.

The previous prime is 103221220283. The next prime is 103221220337. The reversal of 103221220301 is 103022122301.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 103022122301 = 714717446043.

It can be written as a sum of positive squares in 2 ways, for example, as 12681012100 + 90540208201 = 112610^2 + 300899^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-103221220301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103221220301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103221220901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290750 + ... + 539423.

It is an arithmetic number, because the mean of its divisors is an integer number (25805543703).

Almost surely, 2103221220301 is an apocalyptic number.

It is an amenable number.

103221220301 is a deficient number, since it is larger than the sum of its proper divisors (954511).

103221220301 is an equidigital number, since it uses as much as digits as its factorization.

103221220301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954510.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 103221220301 its reverse (103022122301), we get a palindrome (206243342602).

The spelling of 103221220301 in words is "one hundred three billion, two hundred twenty-one million, two hundred twenty thousand, three hundred one".

Divisors: 1 124337 830173 103221220301